Head gasket material/ Graphite roll/ Graphite foil in roll
Available Size & Dimensions ,
Thickness 0. 2mm- - 1. 8mm tolerance: 0. 03- 0. 06
Width 2mm- - 1500mm
length 10- - 610m
Density 0. 1- - 1. 4g/ Cc tolerance: 3%~ 6%
chemical composition,
Carbon 98. 5%min
Ash 0. 5%max
Sulfur 500~1200ppm
chlorine 45ppm(max)
Physical properties,
Compressibility 30%~50% (40% when density is 1. 0g/ Cc)
Elasticity 10%~35%
Operating temperature - 200~~3000
Tensile strength 4. 5Mpa max
Compressive strengthv 160Mpa max
Threshold temperature for oxidation 450 approx
Ignition loss 1. 0% 450C 20% 800C
Fluid resistance(oil #3 5H 150 ) Weight increase : 30%max Thickness increase: 5~10%v
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